Rev Range Of 306 Gti6 Lynx S/c

[boldy205 74]

I've looked at the target power of the Lynx low boost kit, which states a peak power of 7500 RPM, however the standard limit is 6500. My question is, is it generally accepted that they are okay to rev that much on standard internals?

Cheers.

[allanallen 528 2 Cars]

Rev limits for the gti6 are around 7500rpm and 7250rpm for later engines.

[boldy205 74]

I have the earlier engine with manual cam belt tensioner, do the later ones have have and differences apart from the cam belts?

[rallyeash 155]

Plenty of used kits up for sale on the gti6 forum right now

[boldy205 74]

I've got the kit, half way through fitting it at the moment. Just the Rev limit seemed a bit high compared to standard for the older engine, guess I'm concerned, but not concerned enough to worry about it when I'm ragging the nuts off if I expect!

[allanallen 528 2 Cars]

I have the earlier engine with manual cam belt tensioner, do the later ones have have and differences apart from the cam belts?

Your standard rev limit will have been 7500ish then anyway so no different

[boldy205 74]

Ah I see! I have only ever driven the engine on carbs, they made peak power at 6.2k so I guess it's had an easy life, until now!

[rallyeash 155]

My head is on hydraulic lifters and revs to 7750.

 

I wouldn't worry about taking it to 7500-7600 atall. You'll make the power before that anyway.

[boldy205 74]

Would be interesting to see just where the peak power is once fitted, I guess each engine , even in the same standard firm might make peak at different revs, due to cooler pipework routing etc?

[allanallen 528 2 Cars]

Loads of info about on this conversion buddy.

 

http://www.lynxpowerengineering.co.uk/images/sc/lowboostdyno.jpg

Edited May 27, 2015 by allanallen

[boldy205 74]

I've read a fair amount on the conversion, but hadn't seen the dynamic plots. Nice to see the peak power isn't much more that 6.5K

[James_K 6 1 Cars]

Boldy, out of interest are you installing the supercharger kit with the engine already in the car?

I've just bought a 306gti6 with the lynx kit on it and I'm thinking of transferring it to my 205 gti6. Was wondering whether I'd need to take the engine out to get access to the pulleys etc.

[dobboy 231 2 Cars]

Boldy, i've been in Malcs one with a low boost Rotrex.

 

Your in for a pleasant surprise!

 

Sitting in the passengers seat feels like your getting fired out a cannon from 4k onwards. iirc the ecu remap lifts the limiter up a few hundred revs. they're gutsy on petrol btw.

[dobboy 231 2 Cars]

James, i think i read the other day you may need the inlet pipes of the manifold chopped a bit to be able to close your 205 bonnet.

[boldy205 74]

Yes I'm fitting the kit to the engine while its all in the car, it's tight to get the s/c mounting plate on so best to fit that to the engine mount with the mount off the car. Some people seem to manage with a 306 manifold, however I needed the 205 length one. It's not finished yet, but I'm looking forward to driving it!???? As for the fuel, it's only a toy for me so I'm not too fussed!☺

[James_K 6 1 Cars]

Thanks for the tips on fitting, the lack of space at the pulley side was my biggest concern. I'm aware of the need for shortening of the inlet manifold, I'd be interested in seeing how you locate the rad, oil coolers and intercooler behind the bumper, if you've got any pictures

[rallyeash 155]

Check out spikys track car thread. Had a full length mani iirc

[dobboy 231 2 Cars]

There's an old thread on here (silver car....first SC version iirc), and the guy shows each step. Coolers mounted behind the valance/driving lights, but iirc plates had to be put behind them as stones kept flicking up from wheels and wrecked the coolers.

 

I'd like to do it myself, but it's a lot of poppy..... even a DIY one is probably over £2k by the time it's done, and for me it's just for the odd blast on the road..... so can't really justify it, or can i? lol

[rallyeash 155]

Just picked up a high boost 6 for a mate. Actually part own it right now... But I'm keen to drive it. See what's what. Or even more be hunting it out on the circuit.

[p1234 22 2 Cars]

I just finished my high boost conversion and mapped it to 7500. There is no need to rev the nuts off of as it plenty of power low down.

 

The pulleys are very tight to access, I fitted the engine without the bracket and ended up having to undo the mounts and lift the engine up an inch or two to get everything tightened up properly.

[boldy205 74]

Spikey did use a full length mani I think, however not every car is the same, I definitely needed the short version.

P123 : I've been reading your build thread, must be a monster!

James, I do have a few pics, will try and upload, not sure how to! Got all of mine in behind std bumper.

[p1234 22 2 Cars]

First run in the car on Monday so ill let you know how it goes!

 

Upload your photos to Photobucket and copy and paste the link you get from them.

[hatemgti 4]

I do have 205 with high boost lynx kit since one year,the car is a scary beast.

[jackherer 543]

I do have 205 with high boost lynx kit since one year,the car is a scary beast.

 

Do you have any videos of it in action?

[boldy205 74]

Here's a few pics of my set up. As of today I have boost pipes tacked,engine oil cooler pipes routed,charger oil circuit in, still need P clipping back etc. I have hung the I/C from a piece of angle suspended from bumper brackets with engine oil cooler mounted on top of I/C .http://s977.photobucket.com/user/boldy205/media/Mobile%20Uploads/20150516_172917.jpg.html?filters[user]=104925958&filters[recent]=1&sort=1&o=0

 

http://s977.photobucket.com/user/boldy205/media/Mobile%20Uploads/20150509_164645.jpg.html?filters[user]=104925958&filters[recent]=1&sort=1&o=1

 

 

http://s977.photobucket.com/user/boldy205/media/Mobile%20Uploads/20150531_165026.jpg.html?filters[user]=104925958&filters[recent]=1&sort=1&o=3

 

http://s977.photobucket.com/user/boldy205/media/Mobile%20Uploads/20150531_100312.jpg.html?filters[user]=104925958&filters[recent]=1&sort=1&o=4

 

Hope the links work!☺